A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Seismic fragility estimation considering field inspection of reinforced concrete girder bridges
To study the seismic loss properties and performance of reinforced concrete (RC) girder bridge structures, the seismic damage experienced by RC girder bridges during the Wenchuan earthquake in China on May 12, 2008, was investigated and studied. The reconnaissance data of 1069 RC girder bridges in 21 highway sections (Sichuan, Gansu, and Shannxi Province, China) were analysed. The results indicated that the easily damaged parts included excessive displacement of the main girder or girder collapse, seriously damaged piers and abutments, excessive removal or failure of bearings, and seismic damage to the girder bridge caused by a secondary disaster. The bulk of the RC girder bridges were intact or slightly damaged, showing their excellent seismic performance. By improving the normal distribution function, an innovative nonlinear evaluation model (Gauss) was proposed to evaluate the fragility of RC girder bridges. The bridge sample data were counted and sorted, and the vulnerability levels of 1069 RC girder bridges were evaluated by using a novel model and a comprehensive macrointensity scale. An empirical fragility probability capability demand model (function, plane, surface, domain, curve, point cloud, and matrix) considering the damage rate, cumulative empirical probability, and average loss index parameters was established and verified. The results can be employed in future fragility research on this type of bridge.
Seismic fragility estimation considering field inspection of reinforced concrete girder bridges
To study the seismic loss properties and performance of reinforced concrete (RC) girder bridge structures, the seismic damage experienced by RC girder bridges during the Wenchuan earthquake in China on May 12, 2008, was investigated and studied. The reconnaissance data of 1069 RC girder bridges in 21 highway sections (Sichuan, Gansu, and Shannxi Province, China) were analysed. The results indicated that the easily damaged parts included excessive displacement of the main girder or girder collapse, seriously damaged piers and abutments, excessive removal or failure of bearings, and seismic damage to the girder bridge caused by a secondary disaster. The bulk of the RC girder bridges were intact or slightly damaged, showing their excellent seismic performance. By improving the normal distribution function, an innovative nonlinear evaluation model (Gauss) was proposed to evaluate the fragility of RC girder bridges. The bridge sample data were counted and sorted, and the vulnerability levels of 1069 RC girder bridges were evaluated by using a novel model and a comprehensive macrointensity scale. An empirical fragility probability capability demand model (function, plane, surface, domain, curve, point cloud, and matrix) considering the damage rate, cumulative empirical probability, and average loss index parameters was established and verified. The results can be employed in future fragility research on this type of bridge.
Seismic fragility estimation considering field inspection of reinforced concrete girder bridges
Li, Si-Qi (author) / Liu, Hong-Bo (author) / Farsangi, Ehsan Noroozinejad (author) / Du, Ke (author)
Structure and Infrastructure Engineering ; 21 ; 302-318
2025-02-01
17 pages
Article (Journal)
Electronic Resource
English
Seismic fragility analysis of reinforced concrete bridges
| British Library Conference Proceedings | 2001
Fragility Assessment for Seismically Retrofitted Skewed Reinforced Concrete Box Girder Bridges
| Online Contents | 2015
Fragility Assessment for Seismically Retrofitted Skewed Reinforced Concrete Box Girder Bridges
| British Library Online Contents | 2015
Seismic fragility estimates for corroding reinforced concrete bridges
| Online Contents | 2012